MP3 CD Changer Added to 2003 GMC Envoy

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=45563
Printed Date: May 10, 2025 at 4:30 AM

Topic: MP3 CD Changer Added to 2003 GMC Envoy

Posted By: marlon71usa
Subject: MP3 CD Changer Added to 2003 GMC Envoy
Date Posted: December 19, 2004 at 9:39 PM

I have added a cd changer to my 2003 Envoy with bose. I an accessory wire from the ignition. However when I turn off the car the changer turns off and the radio stays on for about 15 minutes. What wire can I tap off of to get my changer to stay on with the radio when I remove the key?

Replies:

Posted By: jstruckman
Date Posted: December 19, 2004 at 10:54 PM

you cant just tap into a wire, the radio stays on because of the RAP, retained accessory power that is controlled by the Class 2 data bus. Soundgate makes an interface called the GMACC. You tap into the data bus wire and it will give you a 12 volt ignition that also utilizes the RAP.

Jazzy

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Posted By: marlon71usa
Date Posted: December 20, 2004 at 11:33 AM

Do you know where I can find this device. The only place I could find was https://www.logjamelectronics.com/ and they were out of stock.

Posted By: jstruckman
Date Posted: December 20, 2004 at 10:32 PM

they should be getting them back in stock soon. Soundgate had to get updated chips for them and they were on back order for a while, they started shipping last week again.Circuit City, or Tweeters also carry Soundgate products along with alot of independant stores.

Jazzy

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Posted By: marlon71usa
Date Posted: December 29, 2004 at 2:59 PM

To jstruckman:

Just received my gmacc. Do you hook yours up to wires in ignition column? Or do you use wires behind radio?

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